Error when using ISO with invalid md5 and CD

[Barnabas]

On Windows 7 (RTM 7600) the wubi installer.
Kubuntu 9.10 beta.

When the installer creating the files on the filesystem, I receive this error and if i press the confirmation button the installer is exiting. After the kubuntu is not in the bootmenu, becasue the installer wasn't done.

"An error occurred
TypeError: coercing to Unicode: need string or buffer, NoneType found
For more informations,please see the log file..."

[Barnabas (szekeresbarnabas-gmail)]

I prepared screenshot

[Agostino Russo (ago)]

Hi, can you please attach the log?

[Barnabas (szekeresbarnabas-gmail)]

Of Corse! I attaching the log tonight!

[Barnabas (szekeresbarnabas-gmail)]

Here is the log!

[Shvetaketu (n-dilipanand)]

Hi,

I had this error on Acer Aspire one using Wubi inside windows. I have comodo internet security. I shut down Comodo and the installation went fine!! :) Hope this helps.

[Barnabas (szekeresbarnabas-gmail)]

Hey!

The problem is fixed in 9.10 RC. Now tested :)

[Matt Ruffalo (mruffalo)]

I encountered this today in Kubuntu 9.10 release.

I have double-checked that the ISO I burned was "kubuntu-9.10-desktop-amd64.iso" -- i.e. not the beta.

Log attached.

(I hope I correctly re-opened this bug, I've never used this bug tracker before)

[Matt Ruffalo (mruffalo)]

I noticed in the log file that I attached:

10-29 14:40 DEBUG TaskList: New task get_file_md5
10-29 14:40 DEBUG TaskList: #### Running get_file_md5...
10-29 14:40 DEBUG TaskList: #### Finished get_file_md5
10-29 14:40 ERROR CommonBackend: Invalid md5 for ISO S:\kubuntu-9.10-desktop-amd64.iso (18ecb71bff567ce7a91443720a86473e != 5a996e0d794e35509d0275d411a3e737)
None
10-29 14:40 DEBUG TaskList: ### Finished check_iso
10-29 14:40 ERROR TaskList: coercing to Unicode: need string or buffer, NoneType found

I know very little about Wubi and its installation procedure, but it seems that it's trying to match the hash of the i386 ISO against the amd64 ISO that it found on one of my network shares.

http://www.kubuntu.org/getkubuntu/download lists the following:
5a996e0d794e35509d0275d411a3e737 kubuntu-9.10-desktop-amd64.iso
18ecb71bff567ce7a91443720a86473e kubuntu-9.10-desktop-i386.iso

[Barnabas (szekeresbarnabas-gmail)]

Hmm very strange. Tomorrow i testing again this bug, I hope for it, that
this bug not commed in finally release.

[amadorjp (amadorjp)]

I have the same problem in a Ubuntu 9.10 final!

[Agostino Russo (ago)]

Please test http://wubi-installer.org/devel/minefield/Wubi-9.10-rev168.exe

[Kevin (kevwilde)]

Receiving same error using rev168.

Log attached.

[Agostino Russo (ago)]

Kevin, I think the problem occurs because you have both an ISO (Y:\ubuntu-9.10-rc-desktop-amd64.iso
) and a CD (E:)

Can you please try to remove the ISO and do a new installation?

[Kevin (kevwilde)]

Agostino, I only have an ISO. The CD tray (E:) is empty.

[Agostino Russo (ago)]

Hmm strange:

11-03 11:49 DEBUG Distro: checking whether E:\ is a valid Ubuntu CD
11-03 11:49 DEBUG Distro: parsing info from str=Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
11-03 11:49 DEBUG Distro: parsed info={'name': 'Ubuntu', 'subversion': 'Release', 'version': '9.10', 'build': '20091027', 'codename': 'Karmic Koala', 'arch': 'amd64'}
11-03 11:49 INFO Distro: Found a valid CD for Ubuntu: E:\

Are you sure you have no CD? I don't see how I could get the above log otherwise.

[Kevin (kevwilde)]

Oh, my apologies. E:\ is my daemontools virtual cd station. D:\ is my physical (real) drive.

[Agostino Russo (ago)]

So can you please try to delete Y:\ubuntu-9.10-rc-desktop-amd64.iso and run the installer again?

[Agostino Russo (ago)]

I am quite sure this problem happens when you have both a ubuntu ISO with invalid md5 (e.g. release candidate after final release or corrupted ISO) and a Ubuntu CD. The kubuntu amd64 was evaluating to invalid because of bug #465936.

[Kevin (kevwilde)]

Cause confirmed. That creates the problem.

[private_lock (private-lock)]

Maybe you could check the sources list, as KPackageKit also suffers from:

TypeError: coercing to Unicode: need string or buffer, NoneType found

It seems, the python apt-backend-end tries to show an errormessage, if a source is invalid.

See bug #546607